Navegação Ciências Exatas e da Terra por Autor "Nascimento, J.R.S."

Resultados 1-3 de 3

    • Attractive forces between electrons in (2+1) - dimensional QED 

      Girotti, Horacio Oscar; Gomes, Marcelo; Lyra, J.L. de; Mendes, R.S.; Nascimento, J.R.S.; Silva, Adilson J. da (1992) [Artigo de periódico]
      Vacuum polarization effects are nonperturbatively incorporated into the photon propagator to eliminate the severe infrared problems characteristic of (2+1)-dimensional QED (QED₃). The theory is thus rephrased in terms of ...

    • Low energy limit of the chern-simons theory coupled to fermions 

      Girotti, Horacio Oscar; Gomes, Marcelo; Nascimento, J.R.S.; Silva, Adilson J. da (1997) [Artigo de periódico]
      We study the nonrelativistic limit of the theory of a quantum Chern-Simons field minimally coupled to Dirac fermions. To get the nonrelativistic effective Lagrangian one has to incorporate vacuum polarization and anomalous ...

    • Reply to comment on "attractive forces bertween electrons in (2+1) - dimensional-qed" 

      Girotti, Horacio Oscar; Gomes, Marcelo; Mendes, R.S.; Lyra, J.L. de; Nascimento, J.R.S.; Silva, Adilson J. da (1993) [Artigo de periódico]